MySQLDB主从复制之SSL

# 主从服务器同时配置crontab任务，与NTP服务器同步时间即可*/5 * * * * ntpdate 172.16.0.1 &>/dev/null

vi /etc/my.cnf	server-id = 1 # 在复制架构中，需保持全局唯一	log-bin = mysql-bin # 默认在数据目录下	sync_binlog = 1 # 设置mariadb每次在提交事务前会将二进制日志同步到磁盘，保证服务器崩溃时不会丢失事件=====service mysqld start # 启动mariadb10=====mysql -hlocalhost -uroot -p # 登录mysqlMariaDB [mysql]> grant replication slave,replication client on *.* to 'repluser'@'172.16.%.%' identified by 'replpass'; # 创建最小权限的复制账号MariaDB [mysql]> flush privileges;MariaDB [mysql]> show master status; # 查看主库的状态信息

vi /etc/my.cnf	server-id = 11 # 在复制架构中，需保持全局唯一	log-bin = mysql-bin # 也可设置为none，即关闭从库的二进制日志	relay-log=/data/relaylogs/relay-bin # 设置中继日志文件	log-slave-updates = 1 # 允许从库将其重放的事件也记录到自身的二进制日志中	read_only = 1 # 从库设置为只读=====service mysqld start # 启动mariadb10=====mysql -hlocalhost -uroot -p # 登录mysqlMariaDB [mysql]> change master to master_host='172.16.251.123',master_user='repluser',master_password='replpass',master_log_file='mysql-bin.000005',master_log_pos=379; # 连接主库MariaDB [mysql]> start slave;MariaDB [mysql]> show slave status/G 查看从库状态

# 在主库上新建数据库并创建数据MariaDB [(none)]> create database test_for_replication;MariaDB [(none)]> create table test_for_replication.user(id int not null primary key auto_increment,name char(20) not null,year int not null,classid int not null);MariaDB [(none)]> insert into test_for_replication.user(name,year,classid) values('Jason Kk',23,2),('Hello Kitty',18,1);# 查看从库能否正常同步数据MariaDB [(none)]> select * from test_for_replication.user; # 见下图1MariaDB [(none)]> show slave status/G # 见下图2

ldd `which mysqld` | grep ssl # 还需查看是否存在libssl.so文件，若不存在，则说明缺少库文件# 麻烦的是若要安装此缺少的库文件，则需安装libopenssl.1.0.0的程序包，但这个包的安装依赖于glibc2.14版本，而CentOS6.5系统上原生的是glibc2.12版本的，这下就又涉及glibc的升级了，过于麻烦了，而且也很危险，故放弃之# 那么就只能重新编译安装mariadb10了，从官网下载最新版的源码包安装吧(www.mariadb.com)

chown -R mysql.mysql /etc/master/ssl/ # 注意修改认证相关文件的权限=====vi /etc/my.cnf # 在mysqld段下添加如下内容[mysqld]ssl_ca= /etc/master/ssl/cacert.pem # 配置CA证书ssl_cert = /etc/master/ssl/master.crt # 配置主库证书ssl_key = /etc/master/ssl/master.key # 配置主库私钥ssl_cipher = DHE-RSA-AES256-SHA # 指定支持的加密算法=====service mysqld reload # 重载配置=====# 再次查看相关变量：MariaDB [(none)]> show variables like '%ssl%' # 见下图# 创建复制账户：MariaDB [mysql]> grant replication slave,replication client on *.* to 'repluser'@'172.16.%.%' identified by 'replpass' reuire ssl; # 特别明确必须通过SSL才能复制

chown -R mysql.mysql /etc/slave/ssl/=====MariaDB [mysql]> change master to master_host='172.16.251.123',master_user='repluser',master_password='replpass',master_log_file='mysql-bin.000010',master_log_pos=776,master_ssl=1,master_ssl_ca='/etc/slave/ssl/cacert.pem',master_ssl_cert='/etc/slave/ssl/slave.crt',master_ssl_key='/etc/slave/ssl/slave.key'; # 在连接主库时直接指定本地从库的证书文件等信息MariaDB [mysql]> start slave;MariaDB [mysql]> show slave status/G # 查看从库状态

vi /root/.my.cnf # 在client段下配置从库证书信息[client]ssl_ca = /etc/slave/ssl/cacert.pemssl_cert = /etc/slave/ssl/slave.crtssl_key = /etc/slave/ssl/slave.keyssl_cipher = DHE-RSA-AES256-SHA=====MariaDB [mysql]> change master to master_host='172.16.251.123',master_user='repluser',master_password='replpass',master_log_file='mysql-bin.000010',master_log_pos=776,master_ssl=1; # 只需指定master_ssl=1即可

# 主库写入：create test.table t1(name char(20) not null,age int not null);# 从库读取；show tables for test;# 验证结果见下图